Examples with MemoryAddress jdk.incubator.foreign.MemoryAddress used on opensource projects

Example 36 with MemoryAddress

use of jdk.incubator.foreign.MemoryAddress in project openj9 by eclipse.

the class StructTests1 method test_add2FloatStructs_returnStructPointer_1.

@Test
public void test_add2FloatStructs_returnStructPointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_FLOAT.withName("elem1"), C_FLOAT.withName("elem2"));
    VarHandle floatHandle1 = structLayout.varHandle(float.class, PathElement.groupElement("elem1"));
    VarHandle floatHandle2 = structLayout.varHandle(float.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2FloatStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        floatHandle1.set(structSegmt1, 25.12F);
        floatHandle2.set(structSegmt1, 11.23F);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        floatHandle1.set(structSegmt2, 24.34F);
        floatHandle2.set(structSegmt2, 13.45F);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals((float) floatHandle1.get(resultSegmt), 49.46F, 0.01F);
        Assert.assertEquals((float) floatHandle2.get(resultSegmt), 24.68F, 0.01F);
    }
}

Example 37 with MemoryAddress

use of jdk.incubator.foreign.MemoryAddress in project openj9 by eclipse.

the class StructTests1 method test_addShortFromPointerAndShortsFromStruct_returnShortPointer_1.

@Test
public void test_addShortFromPointerAndShortsFromStruct_returnShortPointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    VarHandle shortHandle1 = structLayout.varHandle(short.class, PathElement.groupElement("elem1"));
    VarHandle shortHandle2 = structLayout.varHandle(short.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addShortFromPointerAndShortsFromStruct_returnShortPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment shortSegmt = allocator.allocate(C_SHORT);
        MemoryAccess.setShort(shortSegmt, (short) 12);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        shortHandle1.set(structSegmt, (short) 18);
        shortHandle2.set(structSegmt, (short) 19);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(shortSegmt.address(), structSegmt);
        MemorySegment resultSegmt = resultAddr.asSegment(C_SHORT.byteSize(), scope);
        VarHandle shortHandle = MemoryHandles.varHandle(short.class, ByteOrder.nativeOrder());
        short result = (short) shortHandle.get(resultSegmt, 0);
        Assert.assertEquals(result, 49);
        Assert.assertEquals(resultSegmt.address().toRawLongValue(), shortSegmt.address().toRawLongValue());
    }
}

Example 38 with MemoryAddress

use of jdk.incubator.foreign.MemoryAddress in project openj9 by eclipse.

the class StructTests1 method test_add2IntStructs_returnStructPointer_1.

@Test
public void test_add2IntStructs_returnStructPointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_INT.withName("elem1"), C_INT.withName("elem2"));
    VarHandle intHandle1 = structLayout.varHandle(int.class, PathElement.groupElement("elem1"));
    VarHandle intHandle2 = structLayout.varHandle(int.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2IntStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        intHandle1.set(structSegmt1, 11223344);
        intHandle2.set(structSegmt1, 55667788);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        intHandle1.set(structSegmt2, 99001122);
        intHandle2.set(structSegmt2, 33445566);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals(intHandle1.get(resultSegmt), 110224466);
        Assert.assertEquals(intHandle2.get(resultSegmt), 89113354);
    }
}

Example 39 with MemoryAddress

use of jdk.incubator.foreign.MemoryAddress in project openj9 by eclipse.

the class StructTests2 method test_addIntFromPointerAndIntsFromStruct_returnIntPointer_2.

@Test
public void test_addIntFromPointerAndIntsFromStruct_returnIntPointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_INT.withName("elem1"), C_INT.withName("elem2"));
    VarHandle intHandle1 = structLayout.varHandle(int.class, PathElement.groupElement("elem1"));
    VarHandle intHandle2 = structLayout.varHandle(int.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addIntFromPointerAndIntsFromStruct_returnIntPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment intSegmt = allocator.allocate(C_INT);
        MemoryAccess.setInt(intSegmt, 1122333);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        intHandle1.set(structSegmt, 4455666);
        intHandle2.set(structSegmt, 7788999);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, intSegmt.address(), structSegmt);
        MemorySegment resultSegmt = resultAddr.asSegment(C_INT.byteSize(), scope);
        VarHandle intHandle = MemoryHandles.varHandle(int.class, ByteOrder.nativeOrder());
        int result = (int) intHandle.get(resultSegmt, 0);
        Assert.assertEquals(result, 13366998);
        Assert.assertEquals(resultSegmt.address().toRawLongValue(), intSegmt.address().toRawLongValue());
    }
}

Example 40 with MemoryAddress

use of jdk.incubator.foreign.MemoryAddress in project openj9 by eclipse.

the class StructTests2 method test_addByteFromPointerAndBytesFromStruct_returnBytePointer_2.

@Test
public void test_addByteFromPointerAndBytesFromStruct_returnBytePointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
    VarHandle byteHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
    VarHandle byteHandle2 = structLayout.varHandle(byte.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addByteFromPointerAndBytesFromStruct_returnBytePointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment byteSegmt = allocator.allocate(C_CHAR);
        MemoryAccess.setByte(byteSegmt, (byte) 12);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        byteHandle1.set(structSegmt, (byte) 18);
        byteHandle2.set(structSegmt, (byte) 19);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, byteSegmt.address(), structSegmt);
        MemorySegment resultSegmt = resultAddr.asSegment(C_CHAR.byteSize(), scope);
        VarHandle byteHandle = MemoryHandles.varHandle(byte.class, ByteOrder.nativeOrder());
        byte result = (byte) byteHandle.get(resultSegmt, 0);
        Assert.assertEquals(result, 49);
        Assert.assertEquals(resultSegmt.address().toRawLongValue(), byteSegmt.address().toRawLongValue());
    }
}